stickney



2 Sheets-Sheet- 1.

(No Model.)

B., O. STICKNEY. TYPE WRITING MACHINE.

Patented Feb. 2, 1897.

mm m Wm M E N Modem 7 I 2 Sheets-Sheet 2. B. G. STIOKNEY. TYPE WRITING MACHINE.

No. 576,286. Patented Feb. 2 1897.

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UNITED STATES PATENT OFFICE.

BURNHAM G. STIOKNEY, OF ELIZABETH, NEVVJERSEY.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 576,286, dated February 2, 1897.

Original application filed February 1'7, 1893. Serial No. 462,689. Divided and this application filed June 21,1895. Serial No. 553,507. (No model.)

To all whom, it may concern:

Be it known that I, BURNHAM O. STIGKNEY, a citizen of the United States, and a resident of Elizabeth, in the county of Union and State writing machines made the subject of an application filed by me February 17, 1893, Serial No. 462,689, and is a division thereof.

It consists in the features of construction and combinations of devices hereinafter more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings, Figure 1 is a vertical longitudinal section of a type-writing machine embodying my present improvements; and Fig. 2 is a horizontal section taken at the line Z Z of Fig. 1, looking in the direction of the arrow, but omitting the several springs shown at Fig. 1.

V In both views the same parts will be found designated by the same numerals of reference.

1 designates the framework of the machine; 2, the top plate or type-ring; -3 the type-bars, and at the usual power-driven paper-carriage, connected by a strap 5 to the usual springdrum 6. The paper-carriage is provided with a feed-rack 7, with which cooperate a spacing-dog 8 and a detaining-dog 9, mounted upon a trunnion or rocker 10, which is held by a bracket 11 and actuated by a link 12, connected at its lower end to an arm 13, which is secured to a transverse rock shaft 14, mounted in the base of the machine at 15 and provided on each side with forwardly-extending arms 16, the front ends of which are united bya universal bar 17, extending transversely of the machine parallel with said rockshaft 14.

The escapement or spacing mechanism may be of any usual or suitable construction. A

their front ends with heads or keys 21. At a point between its key and fulcrum each keylever 19 is connected by a pivotallink 22 to the outer end of one of a radial series of type-baroperating levers 23,which are pivoted between their ends to fulcrum-posts 24, which are secured to a common support or ring 24:, attached by arms to the framework of the ma chine. To the inner end of each type-baroperating lever 23 is pivoted a vertical trip 25, extending to the upper end of the typebar 3. To each key-lever 19 is also pivoted at 26 a trip 27, extending downwardly to and in engaging position with the universal bar 17.

In operation when a key-lever 19 is depressed the link 22, pivoted thereto, pulls down the outer end of the type-bar-operating lever 23, thus vibrating the inner end thereof upwardly and causing the trip 25 to ascend and operate the type-bar. During the depression of the key-lever 19 the downwardlyextending trip 27 contacts with the universal bar 17, depressing it and its supporting-arms 16, rocking the shaft 14, vibrating the arm 13 upwardly, and through the link 12 actuating the feed-dogs. Through the feed mechanism described or any other suitable feed mechanism the carriage is fed the necessary letter.- space distances as the impressions are made. At a predetermined time the type-bar 3 is released from the control of the type-bar-operating lever 23, and the universal bar 17 and its connected feed mechanism are released from the control of the key-lever, both the type-bar and the universal bar and feed mechanism returning to their normal positions independently and in advanceof the release of the finger-key from pressure, all as will now be more specifically described. Each of said vertical trips 25 is provided at its lower end with an inwardly-extending radial horizontal arm 28. A ring 29, attached by arms to the framework of the machine, is arranged in the path of these arms 28 and acts as an abutment to contact with said arms during their upward motion and Vibrate the trips 25 about their pivots 30. Each type-bar 3 is provided between its pivot and the type with a lateral projection or pin 31, and each trip 25 is provided with a lug 32, standing normally beneath and in engaging position with said lateral projection 31. During the first part of the ascending movement of the trip the lug 32 engages with the pin 31 to vibrate the type-bar from its normal position of rest nearly to the dotted-line position shown at Fig. 1. Then when the arm 28 strikes the abutment the trip is caused to vibrate independently about its pivot and release the type-bar. During this motion the lug 32 is swung inwardly and away from the projection 31, thus releasing the type-bar from the control of the type-bar-operatin g lever 23 and the key-lever 19. This separation occurs at a point when the type is in proximity to the platen, but just before the imprint is made. After this release the type-bar-continues to the platen to make the impression, as indicated by the dotted lines, and then drops by gravity to its normal position in advance and independently of the return to normal position of the lever 23, link 22, and key-le'ver19. Each of the trips 27, depending from the keylevers 19, is also provided with a horizontal contact-arm 33, and a straight horizontal tripping bar or abutment Set extends transversely of the machine beneath the arms 33 and in the path thereof, and during the descent of the lever and its trip the arm contacts with the bar 3-1, causing the trip 27 to vibrate rearwardly about its pivot 26, thus releasing the universal bar 17 from control of the key-lever 19, whereupon the universal bar and the feed mechanism resume their normal positions in advance and independently of the return of the key-lever 19 to normal position and about simultaneously with the return of the typebar. The position of the parts j ustafter said releasing or tripping actions take place is shown in dotted lines at Fig. 1, which view also illus trates by full lines how the parts may return to their normal positions while the key-lever is held down in the dotted-line position shown. The type-bar and the feed mechanism having resumed their normal positions, other keylevers may be manipulated without relieving the first one from pressure. Upon relieving the key-lever 19 from pressure it and the type-bar-operating lever 23 will resume their normal positions under the action of spring During this return movement the upper end of trip 25, under the action of its returning-spring 36, moves outwardly and rides along the pin 31, projecting from the typebar, until the upper edge of the nose or lug 32 drops or passes below said projection, when the said spring 36 throws it outwardly beneath said pin until the upper end or shoulder 37 of the trip comes to a bearing against the said pin or projection 31. During the just-described return of the key-lever 19 to its normal position the lower active end of the trip 27 thereon, under the action of its returning-spring 38, rides along the rear side of the universal bar 17, and as it rises above the universal bar it snaps forwardly into normal position, its lug 39 resting against a pin or projection 40 on said lever. Pads 41 are provided to arrest the motion of the keylevers 19 after said releasing action has taken place.

As shown at Fig. 2, the type-bai opei'ating levers 23 are radially arranged, their inner ends terminating in a circle and bearing a series of trips extending to the type-bars, and their outer ends being each connected by a link 22 to a key-lever 19. The links 22 are pivoted to the key-levers 19 at varying distances from the key-lever fulcrum-rod 20. Hence as the motion of the key-levers is uniform the motion of the links varies, and to compensate for such unequal motion of the links they are attached to the type-bar-operatinglevers 23 at varying distances from their fulcrums, in order to give all the inner ends of the said levers 23 a uniform motion, as will be seen by reference to Fig. 1.

The spring 35 serves to return to normal position the key-lever 19, the link 22, and the type-bar-operating lever 23, the trip 25 moving downwardly under the action of said spring 35 and outwardly under the action of spring 36 to reengage the type-bar.

That I claim herein as new, and desire to secure by Letters Patent, is-

1.. In a type-writing machine, the combination of a type-bar, a type-bar-operating lever connected to a key-lever, a trip pivoted to the type-bar-operatin g lever and extending therefrom directly to the type-bar to actuate the same, and positively-acting means for operating said trip to release the type-bar, the construction and arrangement being such that the trip vibrates the type-bar from its normal position toward and nearly to the platen. and is then forcibly disengaged from the type-bar before the imprint is made, and the construction and arrangement being also such that upon returning to normal position the trip positively reengages the type-bar to the typebar-operatinglever, substantially as set forth.

2. In a type-writing machine, the combination of a swinging type-bar, a type-bar-operating lever, a trip pivoted to said lever and extending therefrom directly to the type-bar and adapted to actuate and release said typebar, means constantly acting on said trip to cause its free operative end to swing into direct rengagement with the type-bar, means for causing the disengagement of the operative end of said trip from said type-bar, and a key-lever connected to said type-bar-operating lever, the combination being such that when the key-lever is depressed the type-baroperating lever is caused to move the trip and the trip in turn to swing the type-bar to make its impression and to also release the same so that it may return to its normal position in advance of said trip, and the construction and arrangement being also such that the said trip on its return movement may ride along under pressure in contact with said type-bar and then by turning on its pivot under said pressure automatically reengage said type-bar or be restored to operative position relatively thereto independently of its operating-lever, substantially as set forth.

3. In a type-writing machine, the combination of a type-bar-operating lever, a key-lever connected thereto, a type-bar, a vertical trip extending from the type-banoperatin g lever directly to the type-bar and an abutment for causing the release of the type-bar during the printing stroke, substantially as set forth.

4. In a type-writing machine, the combination of a type-bar, a type-bar-operating lever, a key-lever connected to the latter, a trip pivoted to the type-bar-operating lever at one end, and at its other end directly engaging the type-bar, and an abutment arranged in the path of the trip to vibrate it independently of its operating lever during its typebar-driving movement, substantially as set forth.

5. In a type-writing machine, the combination of a swinging type-bar, a type-bar-operating lever, a vertically-arranged trip pivoted at one end to said lever and at its other end directly engaging the type-bar and provided with an angularly-arranged arm or contact device, as 28, and an abutment arranged normally in the path of the latter to vibratesaid trip during its printing stroke, substantially as set forth.

6. In a typewriting machine, the combination of a series of type-bar-operating levers, a series of type-bars, a series of trips directly connecting the levers t0 the type-bars, and a bar common to all of said trips for intercepting them and releasing the type-bars during the printing stroke, substantially as set forth.

'7. In a type-writin g machine, the combination of a swinging type-bar having a lateral pin or projection, a type-bar-operating lever, a vertically-arranged trip pivoted thereto and provided at its upper end with a lug and with a shoulder to engage said pin or projection on the type-bar and at its lower end with an arm, and an abutment in the path of said arm, substantially as set forth.

8. In a type-writin g machine, the combination of a type-bar, a spring-actuated typebar-operating lever, a trip pivoted to said lever and having a lug to engage a lateral projection on a type-bar, and having also an arm, as 28, an abutment for contacting with said arm, and a separate spring adapted to independently vibratesaid trip aboutits own pivot during the return stroke and thereby cause it to automatically rengage with the previously-returned type-bar, substantially as set forth.

9. In a type-writing machine, the combination with a type-bar and the universal bar of the carriage-spacing, mechanism, of a key-actuated lever, a tripping means between said lever and said type-bar, and an independent tripping means between said lever and said universal bar, substantially as set forth.

10. In a type-writing machine,the combina' tion of a series of type-bars, a series of typebar-operating levers connected to a series of key-levers, a letter-spacing mechanism including a universal bar, a series of trips between the type-bar-operating levers and the type-bars, and a series of trips between the key-levers and the universal bar, substan tially as set forth.

11. In a type-writing machine,the combination of a type-bar, a key-lever, a universal bar, a type-bar-operting lever, a pivoted independently spring-pressed trip on said lever, an abutment therefor, a second pivoted independently spring-pressed trip on said key-lever to actuate the universal bar, and an abutment arranged in the path of said trip, substantially as set forth.

12. The combination of a series of swinging type-bars, a series of radially-arranged typebar-operating levers below the series of typebars, a series of vertically and radially arranged trips pivoted at their lower ends to said type-baroperating levers and directly engaging the type-bars at their upper ends, a series of key-levers arranged below the typebar-operating levers, and a series of vertical links directly uniting said key-levers and said type-bar operating levers, substantially as set forth.

13. In atype-writing machine,the combination of a series of type-bars, a series of typebar-operating levers terminating in a circle below the type-bars and connected to a series of key-levers, a series of vertical trips pivoted at their lower ends to the operating-levers and directly engaging the type-bars at their upper ends, means for disengaging said trips from the type-bars, and means for reengaging said trips with the type-bars, substantially as set forth.

Signed at New York city, in the county of New York and State of New York, this 20th day of June, A. D. 1895.

BURNHAM C. STIOKNEY.

Witnesses:

JACOB FELBEL, ALFRED H. SWAYNE. 

